If the fan is constantly running that is why your temp gauge is slow to reach normal operating temperature. How is the heat in the cabin?
Normally the computer controls the running of the electric cooling fan based on the input of the coolant temperature sensor. It sends power to the relay, which in turn completes the circuit, thus starting the cooling fan.
I would check for a stuck relay, a wire shorted to 12 volts, or a bad engine coolant temperature sensor. Most autos turn the cooling fan on when the airconditioning is on also.
Good hunting and let us know. :)
Sunday, February 26th, 2006 AT 2:02 PM